two isolates of trichinella were obtained from the jackal, canis aureus: one from the north caspian area, the other from the south-west khuzestan area of iran. the infectivity of the isolates was tested in laboratory animals, in a wild rodent (tatera indica) and in wild pigs. the isolate from khuzestan was of low infectivity to albino rats and it was provisionally identified as trichinella nels...

Domestic and sylvatic Trichinella genotypes were evaluated for infectivity, muscle larvae persistence, and host antibody responses in rats. Groups of rats were inoculated with T. spiralis, T. nativa, T. britovi, three genotypes of T. pseudospiralis (from USSR, USA, and Australia), T. murrelli, Trichinella T6, and T. nelsoni, respectively. The muscle larvae intensity (larvae per gram), total lar...

Most sylvatic species of Trichinella are known to have poor infectivity to rats, but in the present study oral administration of bile from other hosts appeared to modify this infectivity. A total of 75 rats were inoculated in groups of 25 with 3 species of Trichinella (T. spiralis, T. nativa, and T. nelsoni) and each group of rats was given per os daily doses of bile from pig, sheep, chicken an...

The first outbreak of human trichinellosis in China,according to official national publication,was registered in Tibet in 1964. Since then,more than 500 outbreaks, numbering 25 161 cases with 240 deaths, have been recorded.However, this reported quantity is probably highly underestimated because adequate diagnostic techniques might not have been available in the whole area.Moreover, infection i...

This review summarizes the major biological, biochemical and molecular methods which have been developed during last 20 years to distinguish parasites of the genus Trichinella. From the time of the discovery of Trichinella in 1835 until the 1970, it was assumed that trichinellosis was caused by a single species of parasite, Trichinella spiralis. Many biological parameters have been compared to ...

A reverse line blot (RLB) assay was developed to identify different Trichinella genotypes. The RLB assay accomplishes detection and specific identification of the different Trichinella genotypes and relies on hybridization of the amplified 5S ribosomal DNA intergenic spacer regions to specific, membrane-bound oligonucleotide probes. After one single amplification, we were able to detect and gen...

The tolerance to degradation processes in meat of nine Trichinella genotypes was studied in mouse and fox tissue, respectively. Minced muscle tissue with Trichinella larvae of different age was stored at room temperature at 100% relative humidity. During storage weekly sub samples of the minced meat were digested and released larvae were inoculated in mice to evaluate the Reproductive Capacity ...

Only a few studies have compared the muscle distribution of the different Trichinella genotypes. In this study, data were obtained from a series of experimental infections in pigs, wild boars, foxes and horses, with the aim of evaluating the predilection sites of nine well-defined genotypes of Trichinella. Necropsy was performed at 5, 10, 20 and 40 weeks post inoculation. From all host species,...

trichinellosis is both of veterinary and medical importance in countries where pig breeding and pork consumption exists. in iran, people are forbidden to consume pork because of the religious regulations. therefore, there have not been any human cases over the past decades except a doubtful case based on serological test. although there are some sylvatic trichinellosis in wild life in different...

Comparison of the dynamics and antigen recognition profiles of IgG3 following immunisation with larval crude extracts (LCE) and excretory-secretory (ES) products from muscle larvae of different species of Trichinella (T. spiralis, T. nativa, T. britovi, T. nelsoni and genotype T6) was made in BALB/c mice. High levels of gG3 response were obtained in ELISA following immunisation with LCE from al...